Cayford, Joel <br/><br/>
Computer media  living and working with computers 
by Joel Cayford 
 - London  Comedia Publishing Co.  1987 
 - 107 p. : ill. ; 21 cm. 
<br/><br/><label>ISBN: </label>1851780017 
<br/><br/><label>LCCN: </label>88-155170 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic digital computers